#18216B#18216B

#18216B is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.6% C 0.128 H 270.7°. Best body text is #FFFFFF at 14.30:1 contrast (WCAG AA passes).

Color values

HEX	#18216B
RGB	rgb(24, 33, 107)
HSL	hsl(233, 63%, 26%)
HSV	hsv(233, 78%, 42%)
CMYK	cmyk(77.6%, 69.2%, 0%, 58%)
CIE-LAB	lab(17.19, 24.43, -44.12)
CIE-LCH	lch(17.19, 50.43, 298.97°)
OKLab	oklab(29.6% 0.0017 -0.1276)
OKLCH	oklch(29.6% 0.128 270.7)
XYZ	xyz(3.5735, 2.3431, 14.1710)
Luminance	0.0234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18216B #6B6218

analogous

#184A6B #18216B #38186B

triadic

#18216B #6B1821 #216B18

tetradic

#18216B #6B184A #6B6218 #186B38

square

#18216B #6B184A #6B6218 #186B38

split-complementary

#18216B #6B3818 #4A6B18

monochromatic

#060819 #0D1239 #18216B #23309D #2E40CF

Accessibility & contrast

On white

14.30

#18216B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#18216B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18216B

14.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18216B	#FFFFFF	#000000	##FFFFFF
##18216B	1.00	14.30	1.47	14.30
#FFFFFF	14.30	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E6D

Deuteranopia (green-blind)

#00266A

Tritanopia (blue-blind)

#003542

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #18216b;
/* rgb */ color: rgb(24, 33, 107);
/* oklch */ color: oklch(29.6% 0.128 270.7);

Tailwind

colors: {
  custom: {
    50: '#635c96',
    500: '#18216b',
    950: '#000000',
  },
}

SCSS

$custom: #18216b;
$custom-light: #635c96;
$custom-dark: #000000;

JSON

{
  "hex": "#18216b",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 107
  },
  "hsl": {
    "h": 233.494,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.29597,
    "c": 0.1276,
    "h": 270.7
  },
  "luminance": 0.02343
}

Semantic roles & 50–950 ramp

primary

#18216B

secondary

#A1963E

accent

#D541E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #18216B

Body copy rendered with the generated semantic roles for this colour.

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